Business Service call may take much longer than the timeout specified for that service. OSB business services have connect and read timeouts to prevent indefinite waiting for the backend service. Just set it to, for instance, 15 seconds and the call will never last longer than that! … Right? Nope. It can take forever. First, let’s realize what “read timeout” really means. Read timeout is not triggered when the request is not completed 15 seconds after successful connect.